Roofing
Roof systems coordinated with building geometry and weather protection.
ROOFING & BUILDING ENVELOPE
Secondary steel.
Primary coordination.
Roofing, wall cladding, Z purlins, trims and gutters work best when planned together with structure, openings, ventilation and project conditions.
ENGINEERING VIEW
Coordinate members, connections and components.
Purlin layout, cladding interfaces, connection details, trims and drainage need coordinated project information. Final member sizes and specifications follow approved engineering.
Review envelope planning →SCOPE
Five connected building-envelope elements.
Final specifications remain project-specific and subject to approved engineering and requirements.
Wall Cladding
External wall systems coordinated with openings and building use.
Z Purlins
Secondary framing coordinated with primary steel and the envelope.
Trims
Finishing interfaces around edges, corners and transitions.
Gutters
Rainwater collection coordinated with roof geometry and site requirements.
INTEGRATION
Envelope decisions affect structure and operations.
- Roof and wall geometry
- Secondary-member coordination
- Daylight and ventilation requirements
- Door and shutter interfaces
- Canopies or projections where required
- Building extensions and future growth
Shri Satiji can coordinate the envelope as part of the wider PEB, fabrication, supply and erection scope.
Discuss RequirementBEFORE FINAL SPECIFICATION
Coordinate the roof and wall package with the whole project.
Sheet profile, coating, insulation, daylight, ventilation, drainage and support spacing should be selected from the building use and approved project requirements rather than as isolated material choices.
Environment
Consider exposure, rainfall, heat, internal humidity and the operating environment when defining the envelope requirement.
Interfaces
Coordinate ridges, gutters, downpipes, louvers, shutters, canopies, penetrations and future extensions before fabrication and erection.
Secondary steel
Purlins and girts must work with the primary frame, selected sheet system and project-specific spacing and load requirements.
Maintenance
Plan safe access, water drainage and replaceable interfaces so routine inspection and maintenance can be carried out sensibly.
Z PURLIN BUYER QUESTIONS
Questions to settle before the secondary-steel package is frozen.
Final member selection, spacing and specifications remain project-specific and should follow approved engineering information.
What information should be ready before finalising Z purlins and secondary steel?
Useful inputs include the approved building geometry, primary-frame arrangement, roof and wall system, openings, project-specific support spacing and load requirements, plus the relevant envelope and erection interfaces.
Should Z purlins be selected separately from roofing and cladding?
No. Z purlins and other secondary members should be coordinated with the primary frame, selected sheet system, openings, support spacing, loads and the wider roof and wall package.
Can Shri Satiji coordinate Z purlins with the wider PEB and envelope scope?
Yes. Depending on the agreed project scope, Z purlins and secondary steel can be coordinated with the PEB structure, roofing, cladding, fabrication, supply and erection requirements.
ROOFING OR CLADDING PROJECT?
Start with the building and required scope.
Share the project location, building dimensions and envelope requirement.
CONTINUE THE BRIEF
Connect the application, structure and site.
Explore application requirements and the available project evidence. Named projects show only the stages supported by their records.